diff --git a/jenkins/client/credential/gerrit.yml b/jenkins/client/credential/gerrit.yml
index 3b7eb0c..b42f5af 100644
--- a/jenkins/client/credential/gerrit.yml
+++ b/jenkins/client/credential/gerrit.yml
@@ -1,7 +1,9 @@
 parameters:
+  _param:
+    gerrit_admin_user: admin
   jenkins:
     client:
       credential:
         gerrit:
-          username: admin
+          username: ${_param:gerrit_admin_user}
           key: ${_param:gerrit_admin_private_key}
diff --git a/jenkins/client/init.yml b/jenkins/client/init.yml
index 36da8b6..02589e0 100644
--- a/jenkins/client/init.yml
+++ b/jenkins/client/init.yml
@@ -2,11 +2,15 @@
   - service.jenkins.support
   - service.jenkins.client
 parameters:
+  _param:
+    jenkins_client_user: none
+    jenkins_client_password: none
+    jenkins_master_host: ${_param:control_vip_address}
+    jenkins_master_port: 8081
   jenkins:
     client:
       master:
-        host: ${_param:cluster_vip_address}
-        port: 8081
-        # When Jenkins auth is enabled
-        #user: admin
-        #password: dummy
+        host: ${_param:jenkins_master_host}
+        port: ${_param:jenkins_master_port}
+        user: ${_param:jenkins_client_user}
+        password: ${_param:jenkins_client_password}
diff --git a/jenkins/master/config.yml b/jenkins/master/config.yml
index eb7e112..3c9268b 100644
--- a/jenkins/master/config.yml
+++ b/jenkins/master/config.yml
@@ -40,6 +40,9 @@
                   - method java.net.URLConnection setRequestProperty java.lang.String java.lang.String
                   - method java.util.LinkedHashMap$LinkedHashIterator hasNext
                   - method java.util.Map size
+                  - method java.util.regex.MatchResult group int
+                  - method java.util.regex.Matcher matches
+                  - method java.util.regex.Pattern matcher java.lang.CharSequence
                   - method org.jenkinsci.plugins.workflow.job.WorkflowRun doStop
                   - method org.jenkinsci.plugins.workflow.support.steps.build.RunWrapper build
                   - new groovy.json.JsonBuilder java.lang.Object
@@ -69,3 +72,18 @@
                   - staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods plus java.util.List java.util.Collection
                   - staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods putAt java.lang.Object java.lang.String java.lang.Object
                   - staticMethod org.codehaus.groovy.runtime.EncodingGroovyMethods encodeBase64 byte[]
+                  - staticMethod org.codehaus.groovy.runtime.ScriptBytecodeAdapter bitwiseNegate java.lang.Object
+                  - staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods println java.lang.Object java.lang.Object
+                  - method hudson.PluginWrapper getShortName
+                  - method hudson.PluginManager getPlugins
+                  - method jenkins.model.Jenkins getPluginManager
+                  - method hudson.model.ItemGroup getItem java.lang.String
+                  - method hudson.model.Job getLastBuild
+                  - method hudson.model.Run getResult
+                  - method hudson.model.Job getBuilds
+                  - staticMethod java.lang.String format java.lang.String java.lang.Object[]
+                  - staticMethod java.util.regex.Pattern quote java.lang.String
+                  - staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods findAll java.util.List groovy.lang.Closure
+                  - method java.util.Collection remove java.lang.Object
+                  - staticMethod java.lang.System exit int
+
diff --git a/jenkins/slave.yml b/jenkins/slave.yml
deleted file mode 100644
index 42f3ca0..0000000
--- a/jenkins/slave.yml
+++ /dev/null
@@ -1,35 +0,0 @@
-applications:
-  - jenkins
-classes:
-  - service.java.environment
-  - system.docker.host
-parameters:
-  _param:
-    java_environment_version: "8"
-    java_environment_platform: openjdk
-  java:
-    environment:
-      headless: true
-  jenkins:
-    slave:
-      enabled: true
-      pkgs: false
-      sudo: false
-      scripts: []
-      master:
-        host: ${_param:control_vip_address}
-        port: 8081
-        protocol: http
-#      user:
-#        name: admin
-#        password: ${_param:jenkins_admin_password}
-  linux:
-    system:
-      user:
-        jenkins:
-          enabled: true
-          name: jenkins
-          home: /var/lib/jenkins
-          sudo: false
-          groups:
-            - docker
diff --git a/jenkins/slave/docker.yml b/jenkins/slave/docker.yml
new file mode 100644
index 0000000..b134225
--- /dev/null
+++ b/jenkins/slave/docker.yml
@@ -0,0 +1,9 @@
+classes:
+  - system.jenkins.slave
+parameters:
+  linux:
+    system:
+      user:
+        jenkins:
+          groups:
+            - docker
diff --git a/jenkins/slave/init.yml b/jenkins/slave/init.yml
new file mode 100644
index 0000000..c445c14
--- /dev/null
+++ b/jenkins/slave/init.yml
@@ -0,0 +1,37 @@
+applications:
+  - jenkins
+classes:
+  - service.java.environment
+parameters:
+  _param:
+    java_environment_version: "8"
+    java_environment_platform: openjdk
+    jenkins_slave_user: none
+    jenkins_slave_password: none
+    jenkins_master_host: ${_param:control_vip_address}
+    jenkins_master_port: 8081
+    jenkins_master_protocol: http
+  java:
+    environment:
+      headless: true
+  jenkins:
+    slave:
+      enabled: true
+      pkgs: false
+      sudo: false
+      scripts: []
+      master:
+        host: ${_param:jenkins_master_host}
+        port: ${_param:jenkins_master_port}
+        protocol: ${_param:jenkins_master_protocol}
+      user:
+        name: ${_param:jenkins_slave_user}
+        password: ${_param:jenkins_slave_password}
+  linux:
+    system:
+      user:
+        jenkins:
+          enabled: true
+          name: jenkins
+          home: /var/lib/jenkins
+          sudo: false
diff --git a/jenkins/slave/libvirt.yml b/jenkins/slave/libvirt.yml
new file mode 100644
index 0000000..e40b841
--- /dev/null
+++ b/jenkins/slave/libvirt.yml
@@ -0,0 +1,25 @@
+classes:
+  - system.jenkins.slave
+  - service.iptables.server
+parameters:
+  linux:
+    system:
+      user:
+        jenkins:
+          groups:
+            - kvm
+            - libvirtd
+      package:
+        qemu:
+          version: latest
+        libvirt-bin:
+          version: latest
+  # Ensure FORWARD chain to be ACCEPT to avoid issue when running with docker
+  # 1.13 and newer that sets chain to DROP, see:
+  #   https://github.com/docker/docker/pull/28257
+  iptables:
+    service:
+      enabled: true
+      chain:
+        FORWARD:
+          policy: ACCEPT